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|e) 2 sin? (45° - A) = 1 - sin 2A |
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Answer» ONG>Answer: A=45 ∘ then 2A=90 ∘
sin2A=SIN90 ∘
RHS 2sinAcosB=2sin45 ∘ cos45 ∘ =2× 2
1
× 2
1
2sinAcosB=1 LHS: sin90 ∘ =1 L.H.S.=R.H.S. |
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